Stopping indicator for traffic purposes



NI. ADMIRAAL.

STOPPING INDICATOR FOR TRAFFIC PURPOSES.

APPLICATION FILED MAR. Is, I92 I.

Patented Nov..

ears

LEAARTEN'ADMIRAAL, OFy BUSSUM, NETHERLANDS. y

i srorrrne INDICATOR-ron TRAFFIC zeuiarosns.`

applicati@ sied Mami; 1e, 1921; seriaiiv. 452,894;

To ,all fui/m it may concern.'

Be yit known that MAAR EN citizen of the Netherlands,l residing at Bussum, Raadhuis lStraat 16, the Netherlands, has invented certain newvv and useful Improvements ink Stopping Indicatorsl for i Traffic Purposes, of which the following is a specification. A l v lrllhis invention relates to an indicating device to be'used yin railways or in street cars and hasl for its object to providef'irnproved means for indicating the stopping places. i i

In street railway traffic the calling outL of the stopping places by the conductor leads,` as is known, to many troubles andy inuch" misunderstanding, which maybe avoided by using the'device according to the present invention. ,"This Vdevice com'- prises a flexible indicating strip consisting of a series of lexiblyconnected indicating plates carrying lin regular order the .names of the different vstopping places, adapted to be` wound ona drun 1 and` a pair ofreverselyarranged driving or i feeding devices adapted to be operatedby the conductor `for iinparting a progressive step bysteprotary movement to the drum in one direction yor the other, for moving` the naineiplates .in accordance with the .different stopping placesj vAn 'embodiment of the present invention is illustrated in the accompanying drawing, in which'lig. lis a top view of the Qdevice with the cover rernoyed, and Fig. '2 is a cross section on theline `"in Fig 1.

Referring more particularly to thel draw'- ing, l indicatesa square Vdrurn keyed yto a shaft 2, which shaft isrotatablysupported by bearings 3, attached to the casing L of the device, 5 are platescarrying 1the nainesof the stopi'iing placesv in regular order; they are attached to eachother by hinges 6 `so as lo .forni a continuous, flexible indicating strip, and are adaptcdto be fed' over the druinfhthe sides of which are equaltothe height of said plates, so that by turning the direction.

drum to the right or "to theleft the name plates 5 may bejmovedin one oiyitheother j The turning of the 'drum to' the.rightv eected by means of a rope pulley' 7 loosely vmounted yon Vshaft A.2 "and having a pi'illing being Apivotally connected by means" 'of a bolt 10 'to said pulley, which l pawl l engages mannerfs'erve-"to krotate a ratchet wheel 16 To thatend' the pawls 9 andle areshaped y'the teeth of ak ratchetv wheelfll, keyed to the shaft 2, so lthat when said rope is pulled, i i

and consequently the drum 1 to the left, which may be effected by the'disengagemen't f ofthe pawl 9 from the ratchet wheel l1 and theengagement of the pawl lewiththe ratchet wheel 16.

like angle levers with eyesflTand 18, and may rbe lifted from `the respective ratchets 11' and 'p16-by the yengagement of said eyes with the v:levers 2 0 and 19, respectively. Theselevers are keyed to a spindle .21, :rotated by a hand wheel 22 and supported in bearings 23at`tached to the casing L1'. When r'af-square 'drum isutilized, "it will be obvious that eachy ratchetv` kwheel must have k four teeth, and thatf for `shifting a vname plate from one ,position to the next the drum and, consequently, the right or left;V pulleyhas to beturned- 9()D and not more.- lThis turning nioveinent maybe effected by connect-y ing the pulling ropes i8 and 13 to the pulleys iand l2 at the points 24 and25, re-

spectively, in such a mannerthat the length ofr'vthev respective pulling ropes on thepulleys Ais equal to one quarter' of the circuitifn'ninber 4ofthe sides 'ofthe drum and that the length of 'the'pulling -ropeslon the pulf lleys is equal to the v circun iference of `the pulleydivid'ed by vthe number of the 'di-unisides. In order to bring the` rope pulleys back .into theirk former position, kswings l26 j and 27 are connectedtofthefbottom ofthe casing and' `fastened by means of ropes v2,8 and29cto the lrespective ropepulleys. i

' `Brackets 3() are provided. for fastening the'deviceiatsoine suitable place in the car, and 31v is a sight-opening` in' the casing through .Wash i. 'the shiftingnainev plates.

On the drawingljare shown ninein'alne plates, of which' sevenmaybe proyided withy e ypassengersinay observe f i llo Cil the names Lof the stopping places, the two remaining or end plates being left blank on account of the window or sight opening 21 (which is situated at the right side of the casing 2) and of the stop plate 32. The latter which is in the form of af-vertical bar or rib disposed transversely of the flexible element formed by the name plates 5 and to which the bent ends of the two end plates are fastened;l as 'represented iii,Fig.2l, is designed toengage ysaid drum and thus prevent the Vturning of the drinn when the third i plate fronithe left has reached the` Sight op'eningl.

New the operation ofk the device consists only in the pulling ofthe ropes 8 or 13 bv the conductor, when starting for the next stopping place.` l F 2 shows the pawl 9 engaged with ratchet 11', the eye 17 of said pawl being disengaged from the lifting lever-20; while the pawl lilis disengaged fromratchet 16,y

its veye 1,8 being engaged by the lifting vlever 19.

.l/Vhen a pull is exerted yon rope 8,. the pulley 7 will be'rotate'd, the yspringQG will be yput under tension, the pawl 9 will turn vthe ratchet `wheel 11 .onetooth further and the drum will rotate to the right, so that the naine of thev next stopping place 4vwill appear before the opening 31. `When the rope is. released the spring 2d returns the krope pulley 7 to its formerposition and as the pavvll) slips over the ratchet wheel 11, the drum 1 and consequently also the respective nanie plate will be heldin their proper position.

.Thenext pull willhave the same result and will bring the succeeding indicating plate opposite the sight openingand,so on, until'the last stopping place is reached and the stop plate 32 runs against the drum. yBefore starting the returntrip, the handwheel 22 is turned kso far to `the right, that the lifting lever 1.9 is disengaged from the eye 18 of pawl 141-, while the other lever 2i) is engaged with the eye 17 of pawl 9 and lifts the latter out. of engagement with ratchet 11'; the pawl 14. released from lever y19 dropping into engagement with ratchet 16.

'New pulling the ropev 13, the device will be operatedl in the same manner but the drum and thefname rplates will move in the opposite direction.

ci i

Althoughthe drawing shows nineindi- `eating plates to` be'used for seven stopping Y places, the device maycompriseany other suitable-number of plates, asv thenumber used is onlyliinitedbythe spaceV available within the casing for piling up the different plates.

Having noviT particularly. described; and ascertained the natureof my saidinvention Ifdeclarethat' .what lf vclaim ist: l

1. An indicating apparatus of the charina/,osi

direction to said drum, said mechanism embodying a pair of ratchets connected with the drum, one for each direction of move-- ment, a -pawl associated with each ratchet i to drive the same, a rocking spindle, and a pair of levers carried by said spindle to lift either pawl out of rengagement with its respective ratchet.

2. An `indicating apparatus of the chai acter described, comprising a feeding drum over which an indicating strip is adapted to pass; and mechanism for imparting an intermittent, step-by-step rotary movement in either direction to said drum, said mechav nism embodying. a pair of separate driving units each complete; iny itself, one unit for each direction of movement and located at each` side of the drum, and both units oper'- ating .immediately upon said drum, `each unit including an operating member individual thereto anda member engageable by said operating member, anda single device forcliftingeither operating memberv out of such engagement to render the corresponding driving unit inactive;

- 3.v An indicating apparatus of the character described, vcomprising a drumA over which an` indicating strip is4 adapted to pass; a shaft on which said drum is keyed; a pair of ratchetsjkeyed to said shaft; a

pair Vof two-armed pawls, one individual with each pavvl and engageable with one arm thereof to rock the same and thereby disengagethe other arm of the pawl from the respective ratchet; and anroperating element.- whereon said levers are so yarranged as torock only one pawl at a time.

4. An indicating apparatus ofthe character described comprising'a drum over which anv indicating strip is adapted to pass; a shaft on which said drum is keyed; a pair of loose pulleys on said shaft; a fienibleV operating element for each pulley; a pair rof reversely-arranged driving connections between said pulleys and shaft for transmittingthe rotation ofthe former to the latter; and means for simultaneously throwing in one driving connection and throwing out the other.

5. Ina stopping indicator, the combination of a shaft; an angular drum keyed to said shaft; a series of naine plates carryflexibly connected to each other and vadaptedto be, moved by rotating said drum,.and

tvvoratchetgearings forrotating said shaft ,and drum. in opposite directions, eachv gear ing comprising a ratchet wheel keyed to said shaft, a pair of loose pulleys on said the ratchet wheel which is engaged at that shaft, a paWl pvotally connected to each time by its pawl for moving the drum and pulley, said pawls adapted to be alternately the name plates in regular order in aceord- 10 engaged and disengaged with sai-d ratchet ance with the different stopping places.

Wheels, and means for imparting an oscllat- In testimony whereof I alfX my sgnaing movement to said pulleys and paWls, to ture. cause a progressive step by step movement of MAARTEN ADMIRAAL. 

